USGS 01573000 Swatara Creek at Harper Tavern, PA

STATION.--01573000 SWATARA CREEK AT HARPER TAVERN,
PA LOCATION.--Lat 40`24'09", long
76`34'39", Lebanon County, Hydrologic Unit 02050305, on left
bank 100 ft downstream from bridge on State Highway 934 at Harper
Tavern, 6.0 mi northwest of Annville, and 8.5 mi downstream from Little
Swatara Creek.DRAINAGE AREA.--337 square miles.PERIOD OF RECORD.--January 1919 to current year. Prior
to October 1927, published as "at Harpers".GAGE.--Water-stage recorder. Datum of gage is 356.68
ft above National Geodetic Vertical Datum of 1929. Prior to July 16,
1931, non-recording gage at same site and datum. Satellite telemetry at
station.COOPERATION.--Station established and maintained by
the U.S. Geological Survey. Funding for the operation of this station
is provided by the Pennsylvania Department of Environmental Protection
and the U.S. Geological Survey.GAGE HEIGHTS OF IMPORTANCE.-Supplied by USGS: Maximum recordable gage height
(stage sensor operational limit) - 23.2 ft; Data transmitter
operational limit - 24.3 ft;Supplied by NWS: Action stage-7 ft; Flood stage-9 ft,
several driveways and other minor roadways are affected; water begins
to enter basements; Moderate flood stage-12 ft, a number of secondary
roads are closed resulting in some evacuations; few homes are flooded;
Major flood stage-15 ft, a number of homes along the creek are
affected; some evacuations are necessary.
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